Keepus Leftus, Brutus

RAY: This week's puzzler comes from the wonderful world of ancient history and transportation.

Some time ago, a team of British archaeologists came upon some ancient Roman ruins. Among the ruins was a stone quarry, a nearby fortress of some kind, and what appeared to be a small town, with some houses, some livestock pens, and so on.

All of these things were connected by roads -- those famous stone roads built by the Romans. In fact, they probably obtained the stones for the roads from the very quarry they discovered. After some careful observation, these archaeologists determined that the Romans drove their carts and wagons, and probably chariots too, on the left side of the road, just like the Brits do.